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DellEmc: Platform 2.0 Api(chassis,fan,eeprom) for S6100 and Z9100 (#3234)

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This commit is contained in:
Karthik Gengan 2019-08-07 23:32:56 +05:30 committed by Joe LeVeque
parent 6f40933d3d
commit a99a37dbef
7 changed files with 836 additions and 99 deletions
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85
platform/broadcom/sonic-platform-modules-dell/common/dell_pmc.c
View File

@ -70,7 +70,7 @@
#define FAN_TRAY_AIRFLOW 0x0116
/* FAN Z9100 */
/* FAN */
#define SMF_FAN_SPEED_ADDR 0x00F3
#define FAN_TRAY_1_SPEED 0x00F3
#define FAN_TRAY_1_FAN_2_SPEED 0x00F5
@ -83,6 +83,11 @@
#define FAN_TRAY_5_FAN_1_SPEED 0x0103
#define FAN_TRAY_5_FAN_2_SPEED 0x0105
#define FAN_TRAY_5 4
#define FAN_1_SERIAL_CODE 0x0117
#define FAN_2_SERIAL_CODE 0x013A
#define FAN_3_SERIAL_CODE 0x015D
#define FAN_4_SERIAL_CODE 0x0180
#define FAN_5_SERIAL_CODE 0x01A3
#define FAN_601_FAULT (2 + 1)
#define IN28_INPUT (27 + 1)
#define IN404_INPUT (43 + 1)
@ -1738,12 +1743,12 @@ static ssize_t show_psu(struct device *dev,
/* FAN and PSU EEPROM PPID format is:
COUNTRY_CODE-PART_NO-MFG_ID-MFG_DATE_CODE-SERIAL_NO-LABEL_REV */
static ssize_t show_psu_ppid(struct device *dev,
static ssize_t show_ppid(struct device *dev,
struct device_attribute *devattr, char *buf)
{
int index = to_sensor_dev_attr(devattr)->index;
struct smf_data *data = dev_get_drvdata(dev);
char psu_ppid[EEPROM_PPID_SIZE + 1] = {0};
char ppid[EEPROM_PPID_SIZE + 1] = {0};
char psu_mfg_date[EEPROM_MFG_DATE_SIZE + 1] = {0};
char psu_mfg_date_code[EEPROM_DATE_CODE_SIZE + 1] = {0};
char temp;
@ -1751,11 +1756,26 @@ static ssize_t show_psu_ppid(struct device *dev,
switch(index) {
/* PPID starts from Country Code*/
case 0:
reg = FAN_1_SERIAL_CODE;
break;
case 1:
// PPID starts from Country Code
reg = PSU_1_COUNTRY_CODE;
reg = FAN_2_SERIAL_CODE;
break;
case 2:
reg = FAN_3_SERIAL_CODE;
break;
case 3:
reg = FAN_4_SERIAL_CODE;
break;
case 4:
reg = FAN_5_SERIAL_CODE;
break;
case 10:
reg = PSU_1_COUNTRY_CODE;
break;
case 11:
reg = PSU_2_COUNTRY_CODE;
break;
default:
@ -1764,22 +1784,22 @@ static ssize_t show_psu_ppid(struct device *dev,
// Get Country Code
for( i = 0; i < EEPROM_COUNTRY_CODE_SIZE; i++) {
psu_ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
psu_ppid[ppid_pos++] = '-';
ppid[ppid_pos++] = '-';
// Get Part Number
for( i = 0; i < EEPROM_PART_NO_SIZE; i++) {
psu_ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
psu_ppid[ppid_pos++] = '-';
ppid[ppid_pos++] = '-';
// Get Manufacture ID
for( i = 0; i < EEPROM_MFG_ID_SIZE; i++) {
psu_ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
psu_ppid[ppid_pos++] = '-';
ppid[ppid_pos++] = '-';
if(index > 9){ //Applicable only for PSU
// Get Manufacture date
for( i = 0; i < EEPROM_MFG_DATE_SIZE; i++) {
psu_mfg_date[i] = (char)smf_read_reg(data,reg++);
@ -1826,27 +1846,38 @@ static ssize_t show_psu_ppid(struct device *dev,
{
psu_mfg_date_code[2] = ' ';
}
for( i = 0; i < EEPROM_DATE_CODE_SIZE; i++) {
psu_ppid[ppid_pos++] = psu_mfg_date_code[i];
ppid[ppid_pos++] = psu_mfg_date_code[i];
}
psu_ppid[ppid_pos++] = '-';
}else{
for( i = 0; i < EEPROM_DATE_CODE_SIZE; i++) {
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
}
ppid[ppid_pos++] = '-';
// Get Serial Number
for( i = 0; i < EEPROM_SERIAL_NO_SIZE; i++) {
psu_ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
psu_ppid[ppid_pos++] = '-';
ppid[ppid_pos++] = '-';
// Skipping service tag in PPID
if(index > 9){
// Skipping PSU service tag in PPID
reg += EEPROM_SERVICE_TAG_SIZE;
}
else{
// Skipping FAN partno tag in PPID
reg += EEPROM_PART_NO_SIZE;
}
// Get Label Revision
for( i = 0; i < EEPROM_LABEL_REV_SIZE; i++) {
psu_ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
ppid[ppid_pos++] = (char)smf_read_reg(data,reg++);
}
return sprintf(buf, "%s\n",psu_ppid);
return sprintf(buf, "%s\n",ppid);
}
static umode_t smf_psu_is_visible(struct kobject *kobj,
@ -1924,14 +1955,19 @@ static SENSOR_DEVICE_ATTR(fan7_airflow, S_IRUGO, show_fan_airflow, NULL, 3);
static SENSOR_DEVICE_ATTR(fan9_airflow, S_IRUGO, show_fan_airflow, NULL, 4);
static SENSOR_DEVICE_ATTR(fan11_airflow, S_IRUGO, show_psu_fan, NULL, 0);
static SENSOR_DEVICE_ATTR(fan12_airflow, S_IRUGO, show_psu_fan, NULL, 3);
static SENSOR_DEVICE_ATTR(fan1_serialno, S_IRUGO, show_ppid, NULL, 0);
static SENSOR_DEVICE_ATTR(fan3_serialno, S_IRUGO, show_ppid, NULL, 1);
static SENSOR_DEVICE_ATTR(fan5_serialno, S_IRUGO, show_ppid, NULL, 2);
static SENSOR_DEVICE_ATTR(fan7_serialno, S_IRUGO, show_ppid, NULL, 3);
static SENSOR_DEVICE_ATTR(fan9_serialno, S_IRUGO, show_ppid, NULL, 4);
/* IOM status */
static SENSOR_DEVICE_ATTR(iom_status, S_IRUGO, show_voltage, NULL, 44);
static SENSOR_DEVICE_ATTR(iom_presence, S_IRUGO, show_voltage, NULL, 45);
static SENSOR_DEVICE_ATTR(psu1_presence, S_IRUGO, show_psu, NULL, 1);
static SENSOR_DEVICE_ATTR(psu2_presence, S_IRUGO, show_psu, NULL, 6);
static SENSOR_DEVICE_ATTR(psu1_serialno, S_IRUGO, show_psu_ppid, NULL, 1);
static SENSOR_DEVICE_ATTR(psu2_serialno, S_IRUGO, show_psu_ppid, NULL, 2);
static SENSOR_DEVICE_ATTR(psu1_serialno, S_IRUGO, show_ppid, NULL, 10);
static SENSOR_DEVICE_ATTR(psu2_serialno, S_IRUGO, show_ppid, NULL, 11);
static SENSOR_DEVICE_ATTR(current_total_power, S_IRUGO, show_psu, NULL, 10);
/* SMF Version */
@ -1964,6 +2000,11 @@ static struct attribute *smf_dell_attrs[] = {
&sensor_dev_attr_psu2_presence.dev_attr.attr,
&sensor_dev_attr_psu1_serialno.dev_attr.attr,
&sensor_dev_attr_psu2_serialno.dev_attr.attr,
&sensor_dev_attr_fan1_serialno.dev_attr.attr,
&sensor_dev_attr_fan3_serialno.dev_attr.attr,
&sensor_dev_attr_fan5_serialno.dev_attr.attr,
&sensor_dev_attr_fan7_serialno.dev_attr.attr,
&sensor_dev_attr_fan9_serialno.dev_attr.attr,
&sensor_dev_attr_current_total_power.dev_attr.attr,
NULL
};

81
platform/broadcom/sonic-platform-modules-dell/s6100/sonic_platform/chassis.py
View File

@ -1,7 +1,7 @@
#!/usr/bin/env python
#############################################################################
# DELLEMC
# DELLEMC S6100
#
# Module contains an implementation of SONiC Platform Base API and
# provides the platform information
@ -13,6 +13,7 @@ try:
from sonic_platform_base.chassis_base import ChassisBase
from sonic_platform.psu import Psu
from sonic_platform.fan import Fan
from eeprom import Eeprom
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
@ -42,8 +43,10 @@ class Chassis(ChassisBase):
power_reason_dict[44] = ChassisBase.REBOOT_CAUSE_INSUFFICIENT_FAN_SPEED
def __init__(self):
ChassisBase.__init__(self)
ChassisBase.__init__(self)
# Initialize EEPROM
self.sys_eeprom = Eeprom()
for i in range(MAX_S6100_FAN):
fan = Fan(i)
self._fan_list.append(fan)
@ -52,7 +55,7 @@ class Chassis(ChassisBase):
psu = Psu(i)
self._psu_list.append(psu)
def get_pmc_register(self, reg_name):
def _get_pmc_register(self, reg_name):
# On successful read, returns the value read from given
# reg_name and on failure returns 'ERR'
rv = 'ERR'
@ -71,12 +74,79 @@ class Chassis(ChassisBase):
rv = rv.lstrip(" ")
return rv
def get_name(self):
"""
Retrieves the name of the device
Returns:
string: The name of the device
"""
return self.sys_eeprom.modelstr()
def get_presence(self):
"""
Retrieves the presence of the device
Returns:
bool: True if device is present, False if not
"""
return True
def get_model(self):
"""
Retrieves the model number (or part number) of the device
Returns:
string: Model/part number of device
"""
return self.sys_eeprom.part_number_str()
def get_serial(self):
"""
Retrieves the serial number of the device (Service tag)
Returns:
string: Serial number of device
"""
return self.sys_eeprom.serial_str()
def get_base_mac(self):
"""
Retrieves the base MAC address for the chassis
Returns:
A string containing the MAC address in the format
'XX:XX:XX:XX:XX:XX'
"""
return self.sys_eeprom.base_mac_addr()
def get_serial_number(self):
"""
Retrieves the hardware serial number for the chassis
Returns:
A string containing the hardware serial number for this chassis.
"""
return self.sys_eeprom.serial_number_str()
def get_system_eeprom_info(self):
"""
Retrieves the full content of system EEPROM information for the chassis
Returns:
A dictionary where keys are the type code defined in
OCP ONIE TlvInfo EEPROM format and values are their corresponding
values.
"""
def get_reboot_cause(self):
"""
Retrieves the cause of the previous reboot
Returns:
A tuple (string, string) where the first element is a string
containing the cause of the previous reboot. This string must be
one of the predefined strings in this class. If the first string
is "REBOOT_CAUSE_HARDWARE_OTHER", the second string can be used
to pass a description of the reboot cause.
"""
reset_reason = int(self.get_pmc_register('smf_reset_reason'))
power_reason = int(self.get_pmc_register('smf_poweron_reason'))
reset_reason = int(self._get_pmc_register('smf_reset_reason'))
power_reason = int(self._get_pmc_register('smf_poweron_reason'))
# Reset_Reason = 11 ==> PowerLoss
# So return the reboot reason from Last Power_Reason Dictionary
@ -93,4 +163,3 @@ class Chassis(ChassisBase):
return (self.reset_reason_dict[reset_reason], None)
return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Invalid Reason")

78
platform/broadcom/sonic-platform-modules-dell/s6100/sonic_platform/eeprom.py Normal file
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@ -0,0 +1,78 @@
#!/usr/bin/env python
#############################################################################
# DellEmc S6100
#
# Platform and model specific eeprom subclass, inherits from the base class,
# and provides the followings:
# - the eeprom format definition
# - specific encoder/decoder if there is special need
#############################################################################
try:
from sonic_eeprom import eeprom_tlvinfo
import binascii
except ImportError, e:
raise ImportError (str(e) + "- required module not found")
class Eeprom(eeprom_tlvinfo.TlvInfoDecoder):
def __init__(self):
self.eeprom_path = "/sys/class/i2c-adapter/i2c-2/2-0050/eeprom"
super(Eeprom, self).__init__(self.eeprom_path, 0, '', True)
try:
self.eeprom_data = self.read_eeprom()
except:
self.eeprom_data = "N/A"
raise RuntimeError("Eeprom is not Programmed")
def serial_number_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_SERIAL_NUMBER)
if not is_valid:
return "N/A"
return results[2]
def base_mac_addr(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_MAC_BASE)
if not is_valid or results[1] != 6:
return super(TlvInfoDecoder, self).switchaddrstr(e)
return ":".join([binascii.b2a_hex(T) for T in results[2]])
def modelstr(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_PRODUCT_NAME)
if not is_valid:
return "N/A"
return results[2]
def part_number_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_PART_NUMBER)
if not is_valid:
return "N/A"
return results[2]
def serial_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_SERVICE_TAG)
if not is_valid:
return "N/A"
return results[2]
def revision_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_DEVICE_VERSION)
if not is_valid:
return "N/A"
return results[2]

201
platform/broadcom/sonic-platform-modules-dell/s6100/sonic_platform/fan.py
View File

@ -1,42 +1,221 @@
#!/usr/bin/env python
########################################################################
# DellEMC
# DellEMC S6100
#
# Module contains an implementation of SONiC Platform Base API and
# provides the Fans' information which are available in the platform
# provides the Fans' information which are available in the platform.
#
########################################################################
import os.path
try:
import os
from sonic_platform_base.fan_base import FanBase
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
MAX_S6100_PSU_FAN_SPEED = 18000
MAX_S6100_FAN_SPEED = 16000
class Fan(FanBase):
"""DellEMC Platform-specific FAN class"""
"""DellEMC Platform-specific Fan class"""
HWMON_DIR = "/sys/devices/platform/SMF.512/hwmon/"
HWMON_NODE = os.listdir(HWMON_DIR)[0]
MAILBOX_DIR = HWMON_DIR + HWMON_NODE
def __init__(self, fan_index, psu_fan=False):
def __init__(self, fantray_index, fan_index=1, psu_fan=False):
self.is_psu_fan = psu_fan
if not self.is_psu_fan:
# Fan is 1-based in DellEMC platforms
self.index = fan_index + 1
self.get_fan_speed_reg = "fan{}_input".format(2*self.index - 1)
# API index is starting from 0, DellEMC platform index is starting
# from 1
self.fantrayindex = fantray_index + 1
self.fanindex = fan_index + 1
self.get_fan_speed_reg = "fan{}_input".format(
2 * self.fantrayindex - 1)
self.get_fan_dir_reg = "fan{}_airflow".format(
2 * self.fantrayindex - 1)
self.fan_serialno_reg = "fan{}_serialno".format(
2 * self.fantrayindex - 1)
self.max_fan_speed = MAX_S6100_FAN_SPEED
else:
# PSU Fan index starts from 11
self.index = fan_index + 10
self.get_fan_speed_reg = "fan{}_input".format(self.index)
self.fanindex = fan_index + 10
self.get_fan_speed_reg = "fan{}_input".format(self.fanindex)
self.max_fan_speed = MAX_S6100_PSU_FAN_SPEED
def _get_pmc_register(self, reg_name):
# On successful read, returns the value read from given
# reg_name and on failure returns 'ERR'
rv = 'ERR'
mb_reg_file = self.MAILBOX_DIR+'/'+reg_name
if (not os.path.isfile(mb_reg_file)):
return rv
try:
with open(mb_reg_file, 'r') as fd:
rv = fd.read()
except Exception as error:
rv = 'ERR'
rv = rv.rstrip('\r\n')
rv = rv.lstrip(" ")
return rv
def get_name(self):
"""
Retrieves the fan name
Returns:
string: The name of the device
"""
if not self.is_psu_fan:
return "FanTray{}-Fan{}".format(
self.fantrayindex, self.fanindex - 1)
else:
return "PSU{} Fan".format(self.index - 10)
def get_model(self):
"""
Retrieves the part number of the FAN
Returns:
string: Part number of FAN
"""
# For Serial number "US-01234D-54321-25A-0123-A00", the part
# number is "01234D"
fan_serialno = self._get_pmc_register(self.fan_serialno_reg)
if (fan_serialno != 'ERR') and self.get_presence():
if (len(fan_serialno.split('-')) > 1):
fan_partno = fan_serialno.split('-')[1]
else:
fan_partno = 'NA'
else:
fan_partno = 'NA'
return fan_partno
def get_serial(self):
"""
Retrieves the serial number of the FAN
Returns:
string: Serial number of FAN
"""
# Sample Serial number format "US-01234D-54321-25A-0123-A00"
fan_serialno = self._get_pmc_register(self.fan_serialno_reg)
if (fan_serialno == 'ERR') or not self.get_presence():
fan_serialno = 'NA'
return fan_serialno
def get_presence(self):
"""
Retrieves the presence of the FAN
Returns:
bool: True if fan is present, False if not
"""
status = False
fantray_presence = self._get_pmc_register(self.get_fan_speed_reg)
if (fantray_presence != 'ERR'):
fantray_presence = int(fantray_presence, 10)
if (fantray_presence > 0):
status = True
return status
def get_status(self):
"""
Retrieves the operational status of the FAN
Returns:
bool: True if FAN is operating properly, False if not
"""
status = False
fantray_status = self._get_pmc_register(self.get_fan_speed_reg)
if (fantray_status != 'ERR'):
fantray_status = int(fantray_status, 10)
if (fantray_status > 5000):
status = True
return status
def get_direction(self):
"""
Retrieves the fan airflow direction
Returns:
A string, either FAN_DIRECTION_INTAKE or FAN_DIRECTION_EXHAUST
depending on fan direction
"""
direction = ['FAN_DIRECTION_INTAKE', 'FAN_DIRECTION_EXHAUST']
fan_direction = self._get_pmc_register(self.get_fan_dir_reg)
if (fan_direction != 'ERR') and self.get_presence():
fan_direction = int(fan_direction, 10)
else:
return 'N/A'
return direction[fan_direction]
def get_speed(self):
"""
Retrieves the speed of fan
Returns:
int: percentage of the max fan speed
"""
fan_speed = self._get_pmc_register(self.get_fan_speed_reg)
if (fan_speed != 'ERR') and self.get_presence():
speed_in_rpm = int(fan_speed, 10)
speed = (100 * speed_in_rpm)/self.max_fan_speed
else:
speed = 0
return speed
def get_speed_tolerance(self):
"""
Retrieves the speed tolerance of the fan
Returns:
An integer, the percentage of variance from target speed which is
considered tolerable
"""
if self.get_presence():
# The tolerance value is fixed as 20% for all the DellEmc platform
tolerance = 20
else:
tolerance = 0
return tolerance
def set_speed(self, speed):
"""
Set fan speed to expected value
Args:
speed: An integer, the percentage of full fan speed to set fan to,
in the range 0 (off) to 100 (full speed)
Returns:
bool: True if set success, False if fail.
"""
# Fan speeds are controlled by Smart-fussion FPGA.
return False
def set_status_led(self, color):
"""
Set led to expected color
Args:
color: A string representing the color with which to set the
fan module status LED
Returns:
bool: True if set success, False if fail.
"""
# Leds are controlled by Smart-fussion FPGA.
status = False
return status
def get_target_speed(self):
"""
Retrieves the target (expected) speed of the fan
Returns:
An integer, the percentage of full fan speed, in the range 0 (off)
to 100 (full speed)
"""
return 0

82
platform/broadcom/sonic-platform-modules-dell/z9100/sonic_platform/chassis.py
View File

@ -1,7 +1,7 @@
#!/usr/bin/env python
#############################################################################
# DELLEMC
# DELLEMC Z9100
#
# Module contains an implementation of SONiC Platform Base API and
# provides the platform information
@ -11,9 +11,15 @@
try:
import os
from sonic_platform_base.chassis_base import ChassisBase
from sonic_platform.fan import Fan
from eeprom import Eeprom
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
MAX_Z9100_FANTRAY = 5
MAX_Z9100_FAN = 2
MAX_Z9100_PSU = 2
class Chassis(ChassisBase):
"""
@ -37,9 +43,16 @@ class Chassis(ChassisBase):
power_reason_dict[44] = ChassisBase.REBOOT_CAUSE_INSUFFICIENT_FAN_SPEED
def __init__(self):
ChassisBase.__init__(self)
def get_pmc_register(self, reg_name):
ChassisBase.__init__(self)
# Initialize EEPROM
self.sys_eeprom = Eeprom()
for i in range(MAX_Z9100_FANTRAY):
for j in range(MAX_Z9100_FAN):
fan = Fan(i, j)
self._fan_list.append(fan)
def _get_pmc_register(self, reg_name):
# On successful read, returns the value read from given
# reg_name and on failure returns 'ERR'
rv = 'ERR'
@ -58,12 +71,70 @@ class Chassis(ChassisBase):
rv = rv.lstrip(" ")
return rv
def get_name(self):
"""
Retrieves the name of the device
Returns:
string: The name of the device
"""
return self.sys_eeprom.modelstr()
def get_presence(self):
"""
Retrieves the presence of the device
Returns:
bool: True if device is present, False if not
"""
return True
def get_model(self):
"""
Retrieves the model number (or part number) of the device
Returns:
string: Model/part number of device
"""
return self.sys_eeprom.part_number_str()
def get_serial(self):
"""
Retrieves the serial number of the device (Service tag)
Returns:
string: Serial number of device
"""
return self.sys_eeprom.serial_str()
def get_base_mac(self):
"""
Retrieves the base MAC address for the chassis
Returns:
A string containing the MAC address in the format
'XX:XX:XX:XX:XX:XX'
"""
return self.sys_eeprom.base_mac_addr()
def get_serial_number(self):
"""
Retrieves the hardware serial number for the chassis
Returns:
A string containing the hardware serial number for this chassis.
"""
return self.sys_eeprom.serial_number_str()
def get_reboot_cause(self):
"""
Retrieves the cause of the previous reboot
Returns:
A tuple (string, string) where the first element is a string
containing the cause of the previous reboot. This string must be
one of the predefined strings in this class. If the first string
is "REBOOT_CAUSE_HARDWARE_OTHER", the second string can be used
to pass a description of the reboot cause.
"""
reset_reason = int(self.get_pmc_register('smf_reset_reason'))
power_reason = int(self.get_pmc_register('smf_poweron_reason'))
reset_reason = int(self._get_pmc_register('smf_reset_reason'))
power_reason = int(self._get_pmc_register('smf_poweron_reason'))
# Reset_Reason = 11 ==> PowerLoss
# So return the reboot reason from Last Power_Reason Dictionary
@ -81,3 +152,4 @@ class Chassis(ChassisBase):
return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Invalid Reason")

76
platform/broadcom/sonic-platform-modules-dell/z9100/sonic_platform/eeprom.py Normal file
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#!/usr/bin/env python
#############################################################################
# DellEmc Z9100
#
# Platform and model specific eeprom subclass, inherits from the base class,
# and provides the followings:
# - the eeprom format definition
# - specific encoder/decoder if there is special need
#############################################################################
try:
from sonic_eeprom import eeprom_tlvinfo
import binascii
except ImportError, e:
raise ImportError(str(e) + "- required module not found")
class Eeprom(eeprom_tlvinfo.TlvInfoDecoder):
def __init__(self):
self.eeprom_path = "/sys/class/i2c-adapter/i2c-2/2-0050/eeprom"
super(Eeprom, self).__init__(self.eeprom_path, 0, '', True)
try:
self.eeprom_data = self.read_eeprom()
except:
self.eeprom_data = "N/A"
raise RuntimeError("Eeprom is not Programmed")
def serial_number_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_SERIAL_NUMBER)
if not is_valid:
return "N/A"
return results[2]
def base_mac_addr(self):
(is_valid, t) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_MAC_BASE)
if not is_valid or t[1] != 6:
return super(TlvInfoDecoder, self).switchaddrstr(e)
return ":".join([binascii.b2a_hex(T) for T in t[2]])
def modelstr(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_PRODUCT_NAME)
if not is_valid:
return "N/A"
return results[2]
def part_number_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_PART_NUMBER)
if not is_valid:
return "N/A"
return results[2]
def serial_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_SERVICE_TAG)
if not is_valid:
return "N/A"
return results[2]
def revision_str(self):
(is_valid, results) = self.get_tlv_field(
self.eeprom_data, self._TLV_CODE_DEVICE_VERSION)
if not is_valid:
return "N/A"
return results[2]

222
platform/broadcom/sonic-platform-modules-dell/z9100/sonic_platform/fan.py Executable file
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#!/usr/bin/env python
########################################################################
# DellEMC Z9100
#
# Module contains an implementation of SONiC Platform Base API and
# provides the Fans' information which are available in the platform.
#
########################################################################
import os.path
try:
from sonic_platform_base.fan_base import FanBase
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
MAX_Z9100_PSU_FAN_SPEED = 18000
MAX_Z9100_FAN_SPEED = 16000
class Fan(FanBase):
"""DellEMC Platform-specific Fan class"""
HWMON_DIR = "/sys/devices/platform/SMF.512/hwmon/"
HWMON_NODE = os.listdir(HWMON_DIR)[0]
MAILBOX_DIR = HWMON_DIR + HWMON_NODE
def __init__(self, fantray_index, fan_index=1, psu_fan=False):
self.is_psu_fan = psu_fan
if not self.is_psu_fan:
# API index is starting from 0, DellEMC platform index is starting
# from 1
self.fantrayindex = fantray_index + 1
self.fanindex = fan_index + 1
self.get_fan_speed_reg = "fan{}_input".format(
2 * (self.fantrayindex - 1) + (self.fanindex - 1) + 1 )
self.get_fan_dir_reg = "fan{}_airflow".format(
2 * self.fantrayindex - 1)
self.fan_serialno_reg = "fan{}_serialno".format(
2 * self.fantrayindex - 1)
self.max_fan_speed = MAX_Z9100_FAN_SPEED
else:
# PSU Fan index starts from 11
self.fanindex = fan_index + 10
self.get_fan_speed_reg = "fan{}_input".format(self.fanindex)
self.max_fan_speed = MAX_Z9100_PSU_FAN_SPEED
def _get_pmc_register(self, reg_name):
# On successful read, returns the value read from given
# reg_name and on failure returns 'ERR'
rv = 'ERR'
mb_reg_file = self.MAILBOX_DIR+'/'+reg_name
if (not os.path.isfile(mb_reg_file)):
return rv
try:
with open(mb_reg_file, 'r') as fd:
rv = fd.read()
except Exception as error:
rv = 'ERR'
rv = rv.rstrip('\r\n')
rv = rv.lstrip(" ")
return rv
def get_name(self):
"""
Retrieves the fan name
Returns:
string: The name of the device
"""
if not self.is_psu_fan:
return "FanTray{}-Fan{}".format(self.fantrayindex, self.fanindex)
else:
return "PSU{} Fan".format(self.index - 10)
def get_model(self):
"""
Retrieves the part number of the FAN
Returns:
string: Part number of FAN
"""
# For Serial number "US-01234D-54321-25A-0123-A00", the part
# number is "01234D"
fan_serialno = self._get_pmc_register(self.fan_serialno_reg)
if (fan_serialno != 'ERR') and self.get_presence():
if (len(fan_serialno.split('-')) > 1):
fan_partno = fan_serialno.split('-')[1]
else:
fan_partno = 'NA'
else:
fan_partno = 'NA'
return fan_partno
def get_serial(self):
"""
Retrieves the serial number of the FAN
Returns:
string: Serial number of FAN
"""
# Sample Serial number format "US-01234D-54321-25A-0123-A00"
fan_serialno = self._get_pmc_register(self.fan_serialno_reg)
if (fan_serialno == 'ERR') or not self.get_presence():
fan_serialno = 'NA'
return fan_serialno
def get_presence(self):
"""
Retrieves the presence of the FAN
Returns:
bool: True if fan is present, False if not
"""
status = False
fantray_presence = self._get_pmc_register(self.get_fan_speed_reg)
if (fantray_presence != 'ERR'):
fantray_presence = int(fantray_presence, 10)
if (fantray_presence > 0):
status = True
return status
def get_status(self):
"""
Retrieves the operational status of the FAN
Returns:
bool: True if FAN is operating properly, False if not
"""
status = False
fantray_status = self._get_pmc_register(self.get_fan_speed_reg)
if (fantray_status != 'ERR'):
fantray_status = int(fantray_status, 10)
if (fantray_status > 5000):
status = True
return status
def get_direction(self):
"""
Retrieves the fan airflow direction
Returns:
A string, either FAN_DIRECTION_INTAKE or FAN_DIRECTION_EXHAUST
depending on fan direction
"""
direction = ['FAN_DIRECTION_INTAKE', 'FAN_DIRECTION_EXHAUST']
fan_direction = self._get_pmc_register(self.get_fan_dir_reg)
if (fan_direction != 'ERR') and self.get_presence():
fan_direction = int(fan_direction, 10)
else:
return 'N/A'
return direction[fan_direction]
def get_speed(self):
"""
Retrieves the speed of fan
Returns:
int: percentage of the max fan speed
"""
fan_speed = self._get_pmc_register(self.get_fan_speed_reg)
if (fan_speed != 'ERR') and self.get_presence():
speed_in_rpm = int(fan_speed, 10)
speed = (100 * speed_in_rpm)/self.max_fan_speed
else:
speed = 0
return speed
def get_speed_tolerance(self):
"""
Retrieves the speed tolerance of the fan
Returns:
An integer, the percentage of variance from target speed which is
considered tolerable
"""
if self.get_presence():
# The tolerance value is fixed as 20% for all the DellEmc platform
tolerance = 20
else:
tolerance = 0
return tolerance
def set_speed(self, speed):
"""
Set fan speed to expected value
Args:
speed: An integer, the percentage of full fan speed to set fan to,
in the range 0 (off) to 100 (full speed)
Returns:
bool: True if set success, False if fail.
"""
# Fan speeds are controlled by Smart-fussion FPGA.
return False
def set_status_led(self, color):
"""
Set led to expected color
Args:
color: A string representing the color with which to set the
fan module status LED
Returns:
bool: True if set success, False if fail.
"""
# Leds are controlled by Smart-fussion FPGA.
status = False
return status
def get_target_speed(self):
"""
Retrieves the target (expected) speed of the fan
Returns:
An integer, the percentage of full fan speed, in the range 0 (off)
to 100 (full speed)
"""
return 0